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Eftekhari K, Parakhonskiy BV, Grigoriev D, Skirtach AG. Advances in Nanoarchitectonics: A Review of "Static" and "Dynamic" Particle Assembly Methods. MATERIALS (BASEL, SWITZERLAND) 2024; 17:1051. [PMID: 38473523 DOI: 10.3390/ma17051051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/08/2023] [Revised: 01/20/2024] [Accepted: 02/09/2024] [Indexed: 03/14/2024]
Abstract
Particle assembly is a promising technique to create functional materials and devices from nanoscale building blocks. However, the control of particle arrangement and orientation is challenging and requires careful design of the assembly methods and conditions. In this study, the static and dynamic methods of particle assembly are reviewed, focusing on their applications in biomaterial sciences. Static methods rely on the equilibrium interactions between particles and substrates, such as electrostatic, magnetic, or capillary forces. Dynamic methods can be associated with the application of external stimuli, such as electric fields, magnetic fields, light, or sound, to manipulate the particles in a non-equilibrium state. This study discusses the advantages and limitations of such methods as well as nanoarchitectonic principles that guide the formation of desired structures and functions. It also highlights some examples of biomaterials and devices that have been fabricated by particle assembly, such as biosensors, drug delivery systems, tissue engineering scaffolds, and artificial organs. It concludes by outlining the future challenges and opportunities of particle assembly for biomaterial sciences. This review stands as a crucial guide for scholars and professionals in the field, fostering further investigation and innovation. It also highlights the necessity for continuous research to refine these methodologies and devise more efficient techniques for nanomaterial synthesis. The potential ramifications on healthcare and technology are substantial, with implications for drug delivery systems, diagnostic tools, disease treatments, energy storage, environmental science, and electronics.
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Affiliation(s)
- Karaneh Eftekhari
- Nanobiotechnology Group, Faculty of Bioscience Engineering, Ghent University, 9000 Ghent, Belgium
| | - Bogdan V Parakhonskiy
- Nanobiotechnology Group, Faculty of Bioscience Engineering, Ghent University, 9000 Ghent, Belgium
| | - Dmitry Grigoriev
- Multifunctional Colloids and Coatings, Division Life Science and Bioprocesses, Fraunhofer Institute for Applied Polymer Research (IAP), 14476 Potsdam-Golm, Germany
| | - Andre G Skirtach
- Nanobiotechnology Group, Faculty of Bioscience Engineering, Ghent University, 9000 Ghent, Belgium
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2
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Jiang L, Mao X, Liu C, Guo X, Deng R, Zhu J. 2D superlattices via interfacial self-assembly of polymer-grafted Au nanoparticles. Chem Commun (Camb) 2023; 59:14223-14235. [PMID: 37962523 DOI: 10.1039/d3cc04587k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2023]
Abstract
Nanoparticle (NP) superlattices are periodic arrays of nanoscale building blocks. Because of the collective effect between functional NPs, NP superlattices can exhibit exciting new properties that are distinct from those of individual NPs or corresponding bulk materials. In particular, two-dimensional (2D) NP superlattices have attracted increasing attention due to their emerging applications in micro/opto-electronics, catalysis, sensing, and other fields. Among various preparation methods, evaporation-induced interfacial self-assembly has become the most popular method for preparing 2D NP superlattices because it is a simple, low-cost, and scalable process that can be widely applied to various NPs. Introducing soft ligands, such as polymers, can not only provide convenience in controlling the self-assembly process and tuning superlattice structures but also improve the properties of 2D NP superlattices. This feature article focuses on the methods of evaporation-induced self-assembly of polymer-grafted Au NPs into free-standing 2D NP superlattice films at air/liquid interfaces and 2D NP superlattice coatings on substrates, followed by studies on in situ tracking of the self-assembly evolution process through small-angle X-ray scattering. Their application in nano-floating gate memory devices is also included. Finally, the challenges and perspectives of this direction are discussed.
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Affiliation(s)
- Liangzhu Jiang
- Key Laboratory of Materials Chemistry for Energy Conversion and Storage of the Ministry of Education School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, China.
| | - Xi Mao
- Key Laboratory of Materials Chemistry for Energy Conversion and Storage of the Ministry of Education School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, China.
| | - Changxu Liu
- Key Laboratory of Materials Chemistry for Energy Conversion and Storage of the Ministry of Education School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, China.
| | - Xiaodan Guo
- Key Laboratory of Materials Chemistry for Energy Conversion and Storage of the Ministry of Education School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, China.
| | - Renhua Deng
- Key Laboratory of Materials Chemistry for Energy Conversion and Storage of the Ministry of Education School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, China.
| | - Jintao Zhu
- Key Laboratory of Materials Chemistry for Energy Conversion and Storage of the Ministry of Education School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, China.
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3
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Xi X, Wan S, Deng Y, Xia Y, Xiao J, Cao Y, Huang X, Li Z, Yang D, Dong A, Li T. Amphiphilic Self-Assembly of Nanocrystals at Emulsion Interface Renders Fast and Scalable Quasi-Nanosheet Formation. ACS APPLIED MATERIALS & INTERFACES 2022; 14:50354-50362. [PMID: 36315871 DOI: 10.1021/acsami.2c14274] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Scalable assembly of nanocrystals (NCs) into two-dimensional (2D) nanosheets has aroused great interest, yet it remains under-explored. This is because current 2D assembly methods rely mainly on the use of solid- or liquid-air interfaces, which are inherently difficult for upscaling and thus lack practicability. Here, with a microemulsion-based amphiphilic assembly technique, we achieve a fast and scalable preparation of free-standing nanosheets comprising few-layer, tightly packed NCs, namely, quasi-nanosheets (quasi-NSs). Acetic acid, acting as both solvent and surface-treatment agent, is used to render the initially hydrophobic NCs amphiphilic, while simultaneously inducing the interfacial instability right after the assembly of NCs at the emulsion interface to afford quasi-NSs. This amphiphilic assembly method is applicable to a variety of NCs, and multicomponent quasi-NSs are also attainable upon coassembly of different types of NCs. In addition, the structural advantages of quasi-NSs in catalysis are showcased by using NiFe2O4 quasi-NSs as electrocatalysts for the oxygen evolution reaction. This work opens a new route for the scalable construction of 2D NC sheets with designated components and functions.
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Affiliation(s)
- Xiangyun Xi
- State Key Laboratory of Molecule Engineering of Polymers and Department of Macromolecular science, iCHEM, Fudan University, Shanghai 200433, China
| | - Siyu Wan
- Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, iCHEM, Fudan University, Shanghai 200433, China
| | - Yuwei Deng
- Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, iCHEM, Fudan University, Shanghai 200433, China
| | - Yan Xia
- State Key Laboratory of Molecule Engineering of Polymers and Department of Macromolecular science, iCHEM, Fudan University, Shanghai 200433, China
| | - Jingyu Xiao
- State Key Laboratory of Molecule Engineering of Polymers and Department of Macromolecular science, iCHEM, Fudan University, Shanghai 200433, China
| | - Yangfei Cao
- Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, iCHEM, Fudan University, Shanghai 200433, China
| | - Xianwu Huang
- State Key Laboratory of Molecule Engineering of Polymers and Department of Macromolecular science, iCHEM, Fudan University, Shanghai 200433, China
| | - Zhicheng Li
- State Key Laboratory of Molecule Engineering of Polymers and Department of Macromolecular science, iCHEM, Fudan University, Shanghai 200433, China
| | - Dong Yang
- State Key Laboratory of Molecule Engineering of Polymers and Department of Macromolecular science, iCHEM, Fudan University, Shanghai 200433, China
| | - Angang Dong
- Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, iCHEM, Fudan University, Shanghai 200433, China
| | - Tongtao Li
- Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, iCHEM, Fudan University, Shanghai 200433, China
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4
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Ondry JC, Frechette LB, Geissler PL, Alivisatos AP. Trade-offs between Translational and Orientational Order in 2D Superlattices of Polygonal Nanocrystals with Differing Edge Count. NANO LETTERS 2022; 22:389-395. [PMID: 34935383 DOI: 10.1021/acs.nanolett.1c04058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
The goal of this work is to identify factors which modulate structural order in 2D self-assembled superlattices of polygon-shaped colloidal nanocrystals. Using combined experimental and simulation techniques, we quantify order in superlattices of hexagonal prism-shaped CdSe/CdS nanocrystals and cube-shaped CsPbBr3 nanocrystals. Superlattices derived from cube-shaped nanocrystals display less translational order compared to hexagonal prism-shaped nanocrystals both experimentally and in simulations. This effect can be attributed to geometric considerations inherent to the combined rotational and translational symmetries of different polygonal shapes and their superlattices. Cubes form a simple cubic lattice where nanocrystals can slide without steric overlap, whereas hexagonal prisms interlock, preventing translation. Regarding orientational order, cube assemblies display a narrower orientation distribution. Intuitively, hexagonal prisms are a more "spherical" shape compared to cubes. The results presented here outline a conceptual framework for identifying superlattice structures which favor translationally and orientationally ordered self-assembled superlattices.
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Affiliation(s)
- Justin C Ondry
- Department of Chemistry, University of California, Berkeley, California 94720, United States
- Kavli Energy NanoScience Institute, Berkeley, California 94720, United States
| | - Layne B Frechette
- Department of Chemistry, University of California, Berkeley, California 94720, United States
| | - Phillip L Geissler
- Department of Chemistry, University of California, Berkeley, California 94720, United States
| | - A Paul Alivisatos
- Department of Chemistry, University of California, Berkeley, California 94720, United States
- Kavli Energy NanoScience Institute, Berkeley, California 94720, United States
- Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
- Department of Materials Science and Engineering, University of California, Berkeley, California 94720, United States
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5
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Ma Z, Mohapatra J, Wei K, Liu JP, Sun S. Magnetic Nanoparticles: Synthesis, Anisotropy, and Applications. Chem Rev 2021; 123:3904-3943. [PMID: 34968046 DOI: 10.1021/acs.chemrev.1c00860] [Citation(s) in RCA: 42] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Anisotropy is an important and widely present characteristic of materials that provides desired direction-dependent properties. In particular, the introduction of anisotropy into magnetic nanoparticles (MNPs) has become an effective method to obtain new characteristics and functions that are critical for many applications. In this review, we first discuss anisotropy-dependent ferromagnetic properties, ranging from intrinsic magnetocrystalline anisotropy to extrinsic shape and surface anisotropy, and their effects on the magnetic properties. We further summarize the syntheses of monodisperse MNPs with the desired control over the NP dimensions, shapes, compositions, and structures. These controlled syntheses of MNPs allow their magnetism to be finely tuned for many applications. We discuss the potential applications of these MNPs in biomedicine, magnetic recording, magnetotransport, permanent magnets, and catalysis.
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Affiliation(s)
- Zhenhui Ma
- Department of Chemistry, Brown University, Providence, Rhode Island 02912, United States
| | - Jeotikanta Mohapatra
- Department of Physics, The University of Texas at Arlington, Arlington, Texas 76019, United States
| | - Kecheng Wei
- Department of Chemistry, Brown University, Providence, Rhode Island 02912, United States
| | - J Ping Liu
- Department of Physics, The University of Texas at Arlington, Arlington, Texas 76019, United States
| | - Shouheng Sun
- Department of Chemistry, Brown University, Providence, Rhode Island 02912, United States
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6
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Investigation on the Printed CNT-Film-Based Electrochemical Sensor for Detection of Liquid Chemicals. SENSORS 2021; 21:s21155179. [PMID: 34372417 PMCID: PMC8347534 DOI: 10.3390/s21155179] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/18/2021] [Revised: 07/29/2021] [Accepted: 07/29/2021] [Indexed: 11/17/2022]
Abstract
We studied electrochemical sensors using printed carbon nanotubes (CNT) film on a polyethylene telephtalate (PET) substrate. The mechanical stability of the printed CNT film (PCF) was confirmed by using bending and Scotch tape tests. In order to determine the optimum sensor structure, a resistance-type PCF sensor (R-type PCF sensor) and a comb-type PCF sensor (C-type PCF sensor) were fabricated and compared using a diluted NH3 droplet with various concentrations. The magnitude of response, response time, sensitivity, linearity, and limit of detection (LOD) were compared, and it was concluded that C-type PCF sensor has superior performance. In addition, the feasibility of PCF electrochemical sensor was investigated using 12 kinds of hazardous and noxious substances (HNS). The detection mechanism and selectivity of the PCF sensor are discussed.
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7
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Kagan CR, Bassett LC, Murray CB, Thompson SM. Colloidal Quantum Dots as Platforms for Quantum Information Science. Chem Rev 2020; 121:3186-3233. [DOI: 10.1021/acs.chemrev.0c00831] [Citation(s) in RCA: 49] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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8
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Deng K, Luo Z, Tan L, Quan Z. Self-assembly of anisotropic nanoparticles into functional superstructures. Chem Soc Rev 2020; 49:6002-6038. [PMID: 32692337 DOI: 10.1039/d0cs00541j] [Citation(s) in RCA: 103] [Impact Index Per Article: 25.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/28/2024]
Abstract
Self-assembly of colloidal nanoparticles (NPs) into superstructures offers a flexible and promising pathway to manipulate the nanometer-sized particles and thus make full use of their unique properties. This bottom-up strategy builds a bridge between the NP regime and a new class of transformative materials across multiple length scales for technological applications. In this field, anisotropic NPs with size- and shape-dependent physical properties as self-assembly building blocks have long fascinated scientists. Self-assembly of anisotropic NPs not only opens up exciting opportunities to engineer a variety of intriguing and complex superlattice architectures, but also provides access to discover emergent collective properties that stem from their ordered arrangement. Thus, this has stimulated enormous research interests in both fundamental science and technological applications. This present review comprehensively summarizes the latest advances in this area, and highlights their rich packing behaviors from the viewpoint of NP shape. We provide the basics of the experimental techniques to produce NP superstructures and structural characterization tools, and detail the delicate assembled structures. Then the current understanding of the assembly dynamics is discussed with the assistance of in situ studies, followed by emergent collective properties from these NP assemblies. Finally, we end this article with the remaining challenges and outlook, hoping to encourage further research in this field.
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Affiliation(s)
- Kerong Deng
- Department of Chemistry, Academy for Advanced Interdisciplinary Studies, Key Laboratory of Energy Conversion and Storage Technologies, Ministry of Education, Southern University of Science and Technology (SUSTech), Shenzhen, Guangdong 518055, China.
| | - Zhishan Luo
- Department of Chemistry, Academy for Advanced Interdisciplinary Studies, Key Laboratory of Energy Conversion and Storage Technologies, Ministry of Education, Southern University of Science and Technology (SUSTech), Shenzhen, Guangdong 518055, China.
| | - Li Tan
- Department of Chemistry, Academy for Advanced Interdisciplinary Studies, Key Laboratory of Energy Conversion and Storage Technologies, Ministry of Education, Southern University of Science and Technology (SUSTech), Shenzhen, Guangdong 518055, China.
| | - Zewei Quan
- Department of Chemistry, Academy for Advanced Interdisciplinary Studies, Key Laboratory of Energy Conversion and Storage Technologies, Ministry of Education, Southern University of Science and Technology (SUSTech), Shenzhen, Guangdong 518055, China.
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9
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Chemical Solution Deposition of Ordered 2D Arrays of Room-Temperature Ferrimagnetic Cobalt Ferrite Nanodots. Polymers (Basel) 2019; 11:polym11101598. [PMID: 31574914 PMCID: PMC6835257 DOI: 10.3390/polym11101598] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2019] [Revised: 09/15/2019] [Accepted: 09/17/2019] [Indexed: 11/17/2022] Open
Abstract
Over the past decades, the development of nano-scale electronic devices and high-density memory storage media has raised the demand for low-cost fabrication methods of two-dimensional (2D) arrays of magnetic nanostructures. Here, we present a chemical solution deposition methodology to produce 2D arrays of cobalt ferrite (CFO) nanodots on Si substrates. Using thin films of four different self-assembled block copolymers as templates, ordered arrays of nanodots with four different characteristic dimensions were fabricated. The dot sizes and their long-range arrangement were studied with scanning electron microscopy (SEM) and grazing incident small-angle X-ray scattering (GISAXS). The structural evolution during UV/ozone treatment and the following thermal annealing was investigated through monitoring the atomic arrangement with X-ray absorption fine structure spectroscopy (EXAFS) and checking the morphology at each preparation step. The preparation method presented here obtains array types that exhibit thicknesses less than 10 nm and blocking temperatures above room temperature (e.g., 312 K for 20 nm diameter dots). Control over the average dot size allows observing an increase of the blocking temperature with increasing dot diameter. The nanodots present promising properties for room temperature data storage, especially if a better control over their size distribution will be achieved in the future.
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10
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Cai R, Yang D, Yan L, Tian F, Zhang J, Lyu Y, Chen K, Hong C, Chen X, Zhao Y, Chen Z, Tan W. Free-Floating 2D Nanosheets with a Superlattice Assembled from Fe 3O 4 Nanoparticles for Peroxidase-Mimicking Activity. ACS APPLIED NANO MATERIALS 2018; 1:5389-5395. [PMID: 32864584 PMCID: PMC7453917 DOI: 10.1021/acsanm.8b01380] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
The organization of nanoparticles (NPs) with controlled chemical composition and size distribution into well-defined sheets will find many practical applications, but the chemistry remains problematic. Therefore, we report a facile method to assemble NPs to free-floating two-dimensional (2D) nanosheets with a superlattice and thicknesses reaching 22.8 nm. The ligand oleic acid is critical in the formation of nanosheets. As assembled, these free-floating 2D nanosheets remain intact in both polar and nonpolar solvents, e.g., deionized water, ethanol, N,N-dimethylformamide, dimethyl sulfoxide, toluene, hexane, and chloroform, without any disassembly. Compared to Fe3O4 NP building blocks, these 2D nanosheets show more favorable catalytic properties and enhanced catalytic reactivity, which can be exploited to mimic natural enzymes. Our work is expected to open up a new avenue for synthesizing free-floating 2D supersheets by NP assembly, leading to a new generation of materials with enriched functions and broader applications.
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Affiliation(s)
- Ren Cai
- Center for Research at Bio/Nano Interface, Department of Chemistry and Department of Physiology and Functional Genomics, Health Cancer Center, UF Genetics Institute and McKnight Brain Institute, University of Florida, Gainesville, Florida 32611-7200, United States
- Molecular Science and Biomedicine Laboratory, State Key Laboratory for Chemo/Bio Sensing and Chemometrics, College of Chemistry and Chemical Engineering, College of Life Sciences, and Aptamer Engineering Center of Hunan University, Hunan University, Changsha 410082, China
| | - Dan Yang
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore
| | - Liang Yan
- National Center for Nanoscience and Technology, Chinese Academy of Sciences, Beijing 100049, China
| | - Feng Tian
- Shanghai Synchrotron Radiation Facility, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201204, China
| | - Jichao Zhang
- Shanghai Synchrotron Radiation Facility, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201204, China
| | - Yifan Lyu
- Molecular Science and Biomedicine Laboratory, State Key Laboratory for Chemo/Bio Sensing and Chemometrics, College of Chemistry and Chemical Engineering, College of Life Sciences, and Aptamer Engineering Center of Hunan University, Hunan University, Changsha 410082, China
- Institute of Molecular Medicine, Renji Hospital, School of Medicine and College of Chemistry and Chemical Engineering, Shanghai 6 Jiao Tong University, Shanghai 200240, People’s Republic of China
| | - Kangfu Chen
- Department of Mechanical and Aerospace Engineering, University of Florida, Gainesville, Florida 32611-6250, United States
| | - Chengyi Hong
- Center for Research at Bio/Nano Interface, Department of Chemistry and Department of Physiology and Functional Genomics, Health Cancer Center, UF Genetics Institute and McKnight Brain Institute, University of Florida, Gainesville, Florida 32611-7200, United States
| | - Xigao Chen
- Center for Research at Bio/Nano Interface, Department of Chemistry and Department of Physiology and Functional Genomics, Health Cancer Center, UF Genetics Institute and McKnight Brain Institute, University of Florida, Gainesville, Florida 32611-7200, United States
| | - Yuliang Zhao
- National Center for Nanoscience and Technology, Chinese Academy of Sciences, Beijing 100049, China
| | - Zhuo Chen
- Molecular Science and Biomedicine Laboratory, State Key Laboratory for Chemo/Bio Sensing and Chemometrics, College of Chemistry and Chemical Engineering, College of Life Sciences, and Aptamer Engineering Center of Hunan University, Hunan University, Changsha 410082, China
| | - Weihong Tan
- Center for Research at Bio/Nano Interface, Department of Chemistry and Department of Physiology and Functional Genomics, Health Cancer Center, UF Genetics Institute and McKnight Brain Institute, University of Florida, Gainesville, Florida 32611-7200, United States
- Molecular Science and Biomedicine Laboratory, State Key Laboratory for Chemo/Bio Sensing and Chemometrics, College of Chemistry and Chemical Engineering, College of Life Sciences, and Aptamer Engineering Center of Hunan University, Hunan University, Changsha 410082, China
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11
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Fritz-Popovski G, Bodner SC, Sosada-Ludwikowska F, Maier GA, Morak R, Chitu L, Bruegemann L, Lange J, Krane HG, Paris O. A new device for high-temperature in situ GISAXS measurements. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2018; 89:035103. [PMID: 29604726 DOI: 10.1063/1.5005879] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
A heating stage originally designed for diffraction experiments is implemented into a Bruker NANOSTAR instrument for in situ grazing incidence small-angle x-ray scattering experiments. A controlled atmosphere is provided by a dome separating the sample environment from the evacuated scattering instrument. This dome is double shelled in order to enable cooling water to flow through it. A mesoporous silica film templated by a self-assembled block copolymer system is investigated in situ during step-wise heating in air. The GISAXS pattern shows the structural development of the ordered lattice of parallel cylindrical pores. The deformation of the elliptical pore-cross section perpendicular to the film surface was studied with increasing temperature. Moreover, the performance of the setup was tested by controlled in situ heating of a copper surface under controlled oxygen containing atmosphere.
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Affiliation(s)
| | - Sabine C Bodner
- Materials Center Leoben Forschung GmbH, Roseggerstr. 12, 8700 Leoben, Austria
| | | | - Günther A Maier
- Materials Center Leoben Forschung GmbH, Roseggerstr. 12, 8700 Leoben, Austria
| | - Roland Morak
- Institute of Physics, Montanuniversität Leoben, Franz-Josef-Str. 18, 8700 Leoben, Austria
| | - Livia Chitu
- Bruker AXS GmbH, Östliche Rheinbrückenstraße 49, 76187 Karlsruhe, Germany
| | - Lutz Bruegemann
- Bruker AXS GmbH, Östliche Rheinbrückenstraße 49, 76187 Karlsruhe, Germany
| | - Joachim Lange
- Bruker AXS GmbH, Östliche Rheinbrückenstraße 49, 76187 Karlsruhe, Germany
| | - Hans-Georg Krane
- Bruker AXS GmbH, Östliche Rheinbrückenstraße 49, 76187 Karlsruhe, Germany
| | - Oskar Paris
- Institute of Physics, Montanuniversität Leoben, Franz-Josef-Str. 18, 8700 Leoben, Austria
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12
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Guntlin C, Ochsenbein ST, Wörle M, Erni R, Kravchyk KV, Kovalenko MV. Popcorn-Shaped Fe x O (Wüstite) Nanoparticles from a Single-Source Precursor: Colloidal Synthesis and Magnetic Properties. CHEMISTRY OF MATERIALS : A PUBLICATION OF THE AMERICAN CHEMICAL SOCIETY 2018; 30:1249-1256. [PMID: 29606798 PMCID: PMC5871337 DOI: 10.1021/acs.chemmater.7b04382] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/18/2017] [Revised: 01/22/2018] [Indexed: 05/29/2023]
Abstract
Colloidal nanoparticles (NPs) with myriads of compositions and morphologies have been synthesized and characterized in recent years. For wüstite Fe x O, however, obtaining phase-pure NPs with homogeneous morphologies have remained challenging. Herein, we report the colloidal synthesis of phase-pure Fe x O (x ≈ 0.94) popcorn-shaped NPs by decomposition of a single-source precursor, [Fe3(μ3-O)(CF3COO)(μ-CF3COO)6(H2O)2]·CF3COOH. The popcorn shape and multigrain structure had been reconstructed using high-angle annular dark-field scanning transmission electron micrograph (HAADF-STEM) tomography. This morphology offers a large surface area and internal channels and prevents further agglomeration and thermal tumbling of the subparticles. [Fe3(μ3-O)(CF3COO)(μ-CF3COO)6(H2O)2]·CF3COOH behaves as an antiferromagnetic triangle whose magnetic frustration is mitigated by the low symmetry of the complex. The popcorn-shaped Fe x O NPs show the typical wüstite antiferromagnetic transition at approximately 200 K, but behave very differently to their bulk counterpart below 200 K. The magnetization curves show a clear, unsymmetrical hysteresis, which arises from a combined effect of the superparamagnetic behavior and exchange bias.
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Affiliation(s)
- Christoph
P. Guntlin
- Laboratory
for Inorganic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zürich, Vladimir Prelog Weg 1, CH-8093 Zürich, Switzerland
- Laboratory for Thin Films and Photovoltaics and Electron Microscopy
Center, EMPA−Swiss Federal Laboratories
for Materials
Science and Technology, Überlandstrasse 129, CH-8600 Dübendorf, Switzerland
| | - Stefan T. Ochsenbein
- Laboratory
for Inorganic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zürich, Vladimir Prelog Weg 1, CH-8093 Zürich, Switzerland
- Laboratory for Thin Films and Photovoltaics and Electron Microscopy
Center, EMPA−Swiss Federal Laboratories
for Materials
Science and Technology, Überlandstrasse 129, CH-8600 Dübendorf, Switzerland
| | - Michael Wörle
- Laboratory
for Inorganic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zürich, Vladimir Prelog Weg 1, CH-8093 Zürich, Switzerland
| | - Rolf Erni
- Laboratory for Thin Films and Photovoltaics and Electron Microscopy
Center, EMPA−Swiss Federal Laboratories
for Materials
Science and Technology, Überlandstrasse 129, CH-8600 Dübendorf, Switzerland
| | - Kostiantyn V. Kravchyk
- Laboratory
for Inorganic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zürich, Vladimir Prelog Weg 1, CH-8093 Zürich, Switzerland
- Laboratory for Thin Films and Photovoltaics and Electron Microscopy
Center, EMPA−Swiss Federal Laboratories
for Materials
Science and Technology, Überlandstrasse 129, CH-8600 Dübendorf, Switzerland
| | - Maksym V. Kovalenko
- Laboratory
for Inorganic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zürich, Vladimir Prelog Weg 1, CH-8093 Zürich, Switzerland
- Laboratory for Thin Films and Photovoltaics and Electron Microscopy
Center, EMPA−Swiss Federal Laboratories
for Materials
Science and Technology, Überlandstrasse 129, CH-8600 Dübendorf, Switzerland
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13
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Feng J, Song Q, Zhang B, Wu Y, Wang T, Jiang L. Large-Scale, Long-Range-Ordered Patterning of Nanocrystals via Capillary-Bridge Manipulation. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2017; 29:1703143. [PMID: 29059508 DOI: 10.1002/adma.201703143] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/06/2017] [Revised: 09/02/2017] [Indexed: 06/07/2023]
Abstract
Deterministic assembly of nanoparticles with programmable patterns is a core opportunity for property-by-design fabrication and large-scale integration of functional materials and devices. The wet-chemical-synthesized colloidal nanocrystals are compatible with solution assembly techniques, thus possessing advantages of high efficiency, low cost, and large scale. However, conventional solution process suffers from tradeoffs between spatial precision and long-range order of nanocrystal assembly arising from the uncontrollable dewetting dynamics and fluid flow. Here, a capillary-bridge manipulation method is demonstrated for directing the dewetting of nanocrystal inks and deterministically patterning long-range-ordered superlattice structures. This is achieved by employing micropillars with programmable size, arrangement, and shape, which permits deterministic manipulation of geometry, position, and dewetting dynamics of capillary bridges. Various superlattice structures, including one-dimensional (1D), circle, square, pentagon, hexagon, pentagram, cross arrays, are fabricated. Compared to the glassy thin films, long-range-ordered superlattice arrays exhibit improved ferroelectric polarization. Coassembly of nanocrystal superlattice and organic functional molecule is further demonstrated. Through introducing azobenzene into superlattice arrays, a switchable ferroelectric polarization is realized, which is triggered by order-disorder transition of nanocrystal stacking in reversible isomerization process of azobenzene. This method offers a platform for patterning nanocrystal superlattices and fabricating microdevices with functionalities for multiferroics, electronics, and photonics.
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Affiliation(s)
- Jiangang Feng
- Key Laboratory of Bioinspired Smart Interfacial Science, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
- University of Chinese Academy of Science, Beijing, 100049, P. R. China
| | - Qian Song
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry, Chinese Academy of Science, Beijing, 100190, P. R. China
- University of Chinese Academy of Science, Beijing, 100049, P. R. China
| | - Bo Zhang
- School of Chemistry, Beihang University, Beijing, 100191, P. R. China
| | - Yuchen Wu
- Key Laboratory of Bioinspired Smart Interfacial Science, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
| | - Tie Wang
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry, Chinese Academy of Science, Beijing, 100190, P. R. China
| | - Lei Jiang
- Key Laboratory of Bioinspired Smart Interfacial Science, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
- School of Chemistry, Beihang University, Beijing, 100191, P. R. China
- University of Chinese Academy of Science, Beijing, 100049, P. R. China
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14
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Paik T, Yun H, Fleury B, Hong SH, Jo PS, Wu Y, Oh SJ, Cargnello M, Yang H, Murray CB, Kagan CR. Hierarchical Materials Design by Pattern Transfer Printing of Self-Assembled Binary Nanocrystal Superlattices. NANO LETTERS 2017; 17:1387-1394. [PMID: 28146634 DOI: 10.1021/acs.nanolett.6b04279] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
We demonstrate the fabrication of hierarchical materials by controlling the structure of highly ordered binary nanocrystal superlattices (BNSLs) on multiple length scales. Combinations of magnetic, plasmonic, semiconducting, and insulating colloidal nanocrystal (NC) building blocks are self-assembled into BNSL membranes via the liquid-interfacial assembly technique. Free-standing BNSL membranes are transferred onto topographically structured poly(dimethylsiloxane) molds via the Langmuir-Schaefer technique and then deposited in patterns onto substrates via transfer printing. BNSLs with different structural motifs are successfully patterned into various meso- and microstructures such as lines, circles, and even three-dimensional grids across large-area substrates. A combination of electron microscopy and grazing incidence small-angle X-ray scattering (GISAXS) measurements confirm the ordering of NC building blocks in meso- and micropatterned BNSLs. This technique demonstrates structural diversity in the design of hierarchical materials by assembling BNSLs from NC building blocks of different composition and size by patterning BNSLs into various size and shape superstructures of interest for a broad range of applications.
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Affiliation(s)
- Taejong Paik
- School of Integrative Engineering, Chung-Ang University , Seoul, 06974, South Korea
| | | | | | - Sung-Hoon Hong
- Electronics and Telecommunications Research Institute , Daejeon, 34129, South Korea
| | - Pil Sung Jo
- Complex Assemblies of Soft Matter, CNRS-SOLVAY-PENN UMI 3254 , Bristol, Pennsylvania 19007, United States
| | | | - Soong-Ju Oh
- Department of Materials Science and Engineering, Korea University , Seoul 02841, South Korea
| | - Matteo Cargnello
- Department of Chemical Engineering and SUNCAT Center for Interface Science and Catalysis, Stanford University , Stanford, California 94305, United States
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15
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Agthe M, Wetterskog E, Bergström L. Following the Assembly of Iron Oxide Nanocubes by Video Microscopy and Quartz Crystal Microbalance with Dissipation Monitoring. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2017; 33:303-310. [PMID: 27991791 DOI: 10.1021/acs.langmuir.6b03570] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
We have studied the growth of ordered arrays by evaporation-induced self-assembly of iron oxide nanocubes with edge lengths of 6.8 and 10.1 nm using video microscopy (VM) and quartz crystal microbalance with dissipation monitoring (QCM-D). Ex situ electron diffraction of the ordered arrays demonstrates that the crystal axes of the nanocubes are coaligned and confirms that the ordered arrays are mesocrystals. Time-resolved video microscopy shows that growth of the highly ordered arrays at slow solvent evaporation is controlled by particle diffusion and can be described by a simple growth model. The growth of each mesocrystal depends only on the number of nanoparticles within the accessible region irrespective of the relative time of formation. The mass of the dried mesocrystals estimated from the analysis of the bandwidth-shift-to-frequency-shift ratio correlates well with the total mass of the oleate-coated nanoparticles in the deposited dispersion drop.
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Affiliation(s)
- Michael Agthe
- Department of Materials and Environmental Chemistry, Arrhenius Laboratory, Stockholm University , SE-10691 Stockholm, Sweden
| | - Erik Wetterskog
- Department of Engineering Sciences, Ångström Laboratory, Uppsala University , SE-75121 Uppsala, Sweden
| | - Lennart Bergström
- Department of Materials and Environmental Chemistry, Arrhenius Laboratory, Stockholm University , SE-10691 Stockholm, Sweden
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16
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Zhu J, Hersam MC. Assembly and Electronic Applications of Colloidal Nanomaterials. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2017; 29:1603895. [PMID: 27862354 DOI: 10.1002/adma.201603895] [Citation(s) in RCA: 65] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/22/2016] [Revised: 09/01/2016] [Indexed: 06/06/2023]
Abstract
Artificial solids and thin films assembled from colloidal nanomaterials give rise to versatile properties that can be exploited in a range of technologies. In particular, solution-based processes allow for the large-scale and low-cost production of nanoelectronics on rigid or mechanically flexible substrates. To achieve this goal, several processing steps require careful consideration, including nanomaterial synthesis or exfoliation, purification, separation, assembly, hybrid integration, and device testing. Using a ubiquitous electronic device - the field-effect transistor - as a platform, colloidal nanomaterials in three electronic material categories are reviewed systematically: semiconductors, conductors, and dielectrics. The resulting comparative analysis reveals promising opportunities and remaining challenges for colloidal nanomaterials in electronic applications, thereby providing a roadmap for future research and development.
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Affiliation(s)
- Jian Zhu
- Department of Materials Science and Engineering, Northwestern University, 2220 Campus Drive, Evanston, Illinois, 60208-3108, USA
| | - Mark C Hersam
- Department of Materials Science and Engineering, Northwestern University, 2220 Campus Drive, Evanston, Illinois, 60208-3108, USA
- Graduate Program in Applied Physics, Department of Chemistry, Department of Medicine, Department of Electrical Engineering and Computer Science, Northwestern University, Evanston, IL, 60208-3108, USA
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17
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Boles MA, Engel M, Talapin DV. Self-Assembly of Colloidal Nanocrystals: From Intricate Structures to Functional Materials. Chem Rev 2016; 116:11220-89. [PMID: 27552640 DOI: 10.1021/acs.chemrev.6b00196] [Citation(s) in RCA: 1043] [Impact Index Per Article: 130.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Chemical methods developed over the past two decades enable preparation of colloidal nanocrystals with uniform size and shape. These Brownian objects readily order into superlattices. Recently, the range of accessible inorganic cores and tunable surface chemistries dramatically increased, expanding the set of nanocrystal arrangements experimentally attainable. In this review, we discuss efforts to create next-generation materials via bottom-up organization of nanocrystals with preprogrammed functionality and self-assembly instructions. This process is often driven by both interparticle interactions and the influence of the assembly environment. The introduction provides the reader with a practical overview of nanocrystal synthesis, self-assembly, and superlattice characterization. We then summarize the theory of nanocrystal interactions and examine fundamental principles governing nanocrystal self-assembly from hard and soft particle perspectives borrowed from the comparatively established fields of micrometer colloids and block copolymer assembly. We outline the extensive catalog of superlattices prepared to date using hydrocarbon-capped nanocrystals with spherical, polyhedral, rod, plate, and branched inorganic core shapes, as well as those obtained by mixing combinations thereof. We also provide an overview of structural defects in nanocrystal superlattices. We then explore the unique possibilities offered by leveraging nontraditional surface chemistries and assembly environments to control superlattice structure and produce nonbulk assemblies. We end with a discussion of the unique optical, magnetic, electronic, and catalytic properties of ordered nanocrystal superlattices, and the coming advances required to make use of this new class of solids.
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Affiliation(s)
- Michael A Boles
- Department of Chemistry and James Franck Institute, University of Chicago , Chicago, Illinois 60637, United States
| | - Michael Engel
- Institute for Multiscale Simulation, Friedrich-Alexander University Erlangen-Nürnberg , 91052 Erlangen, Germany.,Department of Chemical Engineering, University of Michigan , Ann Arbor, Michigan 48109, United States
| | - Dmitri V Talapin
- Department of Chemistry and James Franck Institute, University of Chicago , Chicago, Illinois 60637, United States.,Center for Nanoscale Materials, Argonne National Lab , Argonne, Illinois 60439, United States
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18
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Maulu A, Rodríguez-Cantó PJ, Navarro-Arenas J, Abargues R, Sánchez-Royo JF, García-Calzada R, Martínez Pastor JP. Strongly-coupled PbS QD solids by doctor blading for IR photodetection. RSC Adv 2016. [DOI: 10.1039/c6ra14782h] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
In this work, doctor blading is proposed for the fabrication of strongly-coupled QD solids from a PbS nanoink for photodetection at telecom wavelengths.
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Affiliation(s)
- Alberto Maulu
- Instituto de Ciencia de los Materiales
- Universidad de Valencia
- 46071 Valencia
- Spain
| | | | - Juan Navarro-Arenas
- Instituto de Ciencia de los Materiales
- Universidad de Valencia
- 46071 Valencia
- Spain
| | | | - Juan F. Sánchez-Royo
- Instituto de Ciencia de los Materiales
- Universidad de Valencia
- 46071 Valencia
- Spain
| | - Raúl García-Calzada
- Instituto de Ciencia de los Materiales
- Universidad de Valencia
- 46071 Valencia
- Spain
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19
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Kagan CR, Murray CB. Charge transport in strongly coupled quantum dot solids. NATURE NANOTECHNOLOGY 2015; 10:1013-26. [PMID: 26551016 DOI: 10.1038/nnano.2015.247] [Citation(s) in RCA: 241] [Impact Index Per Article: 26.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/03/2015] [Accepted: 09/21/2015] [Indexed: 05/20/2023]
Abstract
The emergence of high-mobility, colloidal semiconductor quantum dot (QD) solids has triggered fundamental studies that map the evolution from carrier hopping through localized quantum-confined states to band-like charge transport in delocalized and hybridized states of strongly coupled QD solids, in analogy with the construction of solids from atoms. Increased coupling in QD solids has led to record-breaking performance in QD devices, such as electronic transistors and circuitry, optoelectronic light-emitting diodes, photovoltaic devices and photodetectors, and thermoelectric devices. Here, we review the advances in synthesis, assembly, ligand treatments and doping that have enabled high-mobility QD solids, as well as the experiments and theory that depict band-like transport in the QD solid state. We also present recent QD devices and discuss future prospects for QD materials and device design.
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Affiliation(s)
- Cherie R Kagan
- Department of Electrical and Systems Engineering, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA
- Department of Materials Science and Engineering, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA
- Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA
| | - Christopher B Murray
- Department of Materials Science and Engineering, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA
- Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA
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20
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Vorobiev A, Khassanov A, Ukleev V, Snigireva I, Konovalov O. Substantial Difference in Ordering of 10, 15, and 20 nm Iron Oxide Nanoparticles on a Water Surface: In Situ Characterization by the Grazing Incidence X-ray Scattering. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2015; 31:11639-11648. [PMID: 26399881 DOI: 10.1021/acs.langmuir.5b02644] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
In the present study, for the first time, a unique combination of in situ grazing incidence small-angle X-ray scattering and X-ray reflectivity, accompanied by the pressure-area isotherm analysis, Brewster angle microscopy, and ex situ scanning electron microscopy, was applied for investigation of two-dimensional superlattices of magnetic nanoparticles as they form on a water surface in a Langmuir trough. Iron oxide particles of different sizes stabilized with a single layer of oleic acid were used. It is demonstrated that monodisperse 10 nm particles on a water surface reproducibly form identical highly ordered monolayers in a wide range of experimental conditions, while monodisperse 20 nm particles always form compact three-dimensional clusters and never the monolayers. Monodisperse particles of an intermediate size, 15 nm in diameter, build a metastable monolayer, which shows a tendency for spontaneous transformation to bi-, tri-, and multilayer islands. The importance to use both grazing incidence small-angle X-ray scattering and X-ray reflectivity together with the complementary techniques, to avoid misinterpretation of separate experimental data sets, is underlined.
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Affiliation(s)
- A Vorobiev
- Department of Physics and Astronomy, Uppsala University , Box 516, 751 20 Uppsala, Sweden
- European Synchrotron Radiation Facility , 71 Avenue des Martyrs, CS 40220, 38043 Grenoble Cedex 9, France
| | - A Khassanov
- European Synchrotron Radiation Facility , 71 Avenue des Martyrs, CS 40220, 38043 Grenoble Cedex 9, France
- Organic Materials and Devices, Friedrich-Alexander-Universität Erlangen-Nürnberg , Martensstraße 7, 91058 Erlangen, Germany
| | - V Ukleev
- Department of Physics and Astronomy, Uppsala University , Box 516, 751 20 Uppsala, Sweden
- Petersburg Nuclear Physics Institute , Orlova Roscha, Gatchina, St. Petersburg 188300, Russia
| | - I Snigireva
- European Synchrotron Radiation Facility , 71 Avenue des Martyrs, CS 40220, 38043 Grenoble Cedex 9, France
| | - O Konovalov
- European Synchrotron Radiation Facility , 71 Avenue des Martyrs, CS 40220, 38043 Grenoble Cedex 9, France
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21
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Gaulding EA, Diroll BT, Goodwin ED, Vrtis ZJ, Kagan CR, Murray CB. Deposition of wafer-scale single-component and binary nanocrystal superlattice thin films via dip-coating. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2015; 27:2846-51. [PMID: 25820834 DOI: 10.1002/adma.201405575] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/05/2014] [Revised: 03/05/2015] [Indexed: 05/09/2023]
Affiliation(s)
- E Ashley Gaulding
- Department of Materials Science and Engineering, University of Pennsylvania, Philadelphia, PA, 19104, USA
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22
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Shaik AH, Chakraborty J. Synthesis of monodisperse copper nanoparticles using a modified digestive ripening technique and formation of superlattices. RSC Adv 2015. [DOI: 10.1039/c5ra16508c] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Synthesis of very uniform copper nanoparticles and subsequent superlattice formation.
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Affiliation(s)
- A. H. Shaik
- Department of Chemical Engineering
- Indian Institute of Technology Kharagpur
- India
| | - J. Chakraborty
- Department of Chemical Engineering
- Indian Institute of Technology Kharagpur
- India
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23
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Bai S, He S, Jin Y, Wu Z, Xia Z, Sun B, Wang X, Ye Z, Gao F, Shao S, Zhang F. Electrophoretic deposited oxide thin films as charge transporting interlayers for solution-processed optoelectronic devices: the case of ZnO nanocrystals. RSC Adv 2015. [DOI: 10.1039/c4ra09765c] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A promising fabrication method of electron transporting interlayers for solution-processed optoelectronic devices by electrophoretic deposition (EPD) of colloidal zinc oxide (ZnO) nanocrystals was demonstrated.
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24
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Corricelli M, Altamura D, Curri ML, Sibillano T, Siliqi D, Mazzone A, Depalo N, Fanizza E, Zanchet D, Giannini C, Striccoli M. GISAXS and GIWAXS study on self-assembling processes of nanoparticle based superlattices. CrystEngComm 2014. [DOI: 10.1039/c4ce01291g] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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25
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Dutta A, Chakraborty J, Prasad BLV, Sahu P. Synthesis and in situ observation of 3D superlattices of gold nanoparticles using oil-in-water emulsion. J Colloid Interface Sci 2014; 420:41-9. [PMID: 24559698 DOI: 10.1016/j.jcis.2013.12.060] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2013] [Revised: 12/17/2013] [Accepted: 12/27/2013] [Indexed: 11/27/2022]
Abstract
In this work oil-in-water emulsion has been successfully used as a confined environment to grow 3D superlattices of gold nanoparticles. The superlattices were grown from 5 nm uniform gold nanoparticles using slow destabilization method. The confined environment was created by forming a stable emulsion where the gold colloid suspended in toluene was used as oil phase. Superlattices were also formed in bulk solution using the same slow destabilization method. A comparative study reveals that compact superlattices form more readily inside the emulsion drops as compared to bulk precipitation. The unstable colloid (in bulk or as emulsion) was aged for various periods at 5 °C to form more compact superlattices. The best superlattices with sharp corners are observed when the superlattices are formed inside the emulsion and aged for a month. Two key parameters, the incubation temperature and anti-solvent concentration, are optimized to obtain larger superlattices with sharp features. A new method is also demonstrated for in situ observation of superlattice formation using an optical microscope.
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Affiliation(s)
- Ankur Dutta
- Department of Chemical Engineering, Indian Institute of Technology, Kharagpur 721302, India
| | - Jayanta Chakraborty
- Department of Chemical Engineering, Indian Institute of Technology, Kharagpur 721302, India.
| | - B L V Prasad
- Materials Chemistry Division, National Chemical Laboratory, Pune 411008, India
| | - Puspanjali Sahu
- Materials Chemistry Division, National Chemical Laboratory, Pune 411008, India
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26
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Miszta K, Greullet F, Marras S, Prato M, Toma A, Arciniegas M, Manna L, Krahne R. Nanocrystal film patterning by inhibiting cation exchange via electron-beam or X-ray lithography. NANO LETTERS 2014; 14:2116-2122. [PMID: 24593136 DOI: 10.1021/nl500349j] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
In this Letter we report patterning of colloidal nanocrystal films that combines direct e-beam (electron beam) writing with cation exchange. The e-beam irradiation causes cross-linking of the ligand molecules present at the nanocrystal surface, and the cross-linked molecules act as a mask for further processing. Consequently, in the following step of cation exchange, which is performed by directly dipping the substrate in a solution containing the new cations, the regions that have not been exposed to the electron beam are chemically transformed, while the exposed ones remain unchanged. This selective protection allows the design of patterns that are formed by chemically different nanocrystals, yet in a homogeneous nanocrystal film. Spatially resolved compositional analysis by energy-dispersive X-ray spectroscopy (EDS) corroborates that the selective exchange occurs only in the nonirradiated regions. We demonstrate the utility of this lithography approach by fabricating conductive wires and luminescent patterns in CdSe/CdS nanocrystal films by converting nonirradiated regions to Cu2-xSe/Cu2-xS. Furthermore, we show that X-ray irradiation too can lead to protection from cation exchange.
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Affiliation(s)
- Karol Miszta
- Istituto Italiano di Tecnologia , Via Morego 30, 16163 Genova, Italy
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27
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Yalcin AO, de Nijs B, Fan Z, Tichelaar FD, Vanmaekelbergh D, van Blaaderen A, Vlugt TJH, van Huis MA, Zandbergen HW. Core-shell reconfiguration through thermal annealing in Fe(x)O/CoFe2O4 ordered 2D nanocrystal arrays. NANOTECHNOLOGY 2014; 25:055601. [PMID: 24407270 DOI: 10.1088/0957-4484/25/5/055601] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
A great variety of single- and multi-component nanocrystals (NCs) can now be synthesized and integrated into nanocrystal superlattices. However, the thermal and temporal stability of these superstructures and their components can be a limiting factor for their application as functional devices. On the other hand, temperature induced reconstructions can also reveal opportunities to manipulate properties and access new types of nanostructures. In situ atomically resolved monitoring of nanomaterials provides insight into the temperature induced evolution of the individual NC constituents within these superstructures at the atomic level. Here, we investigate the effect of temperature annealing on 2D square and hexagonal arrays of FexO/CoFe2O4 core/shell NCs by in situ heating in a transmission electron microscope (TEM). Both cubic and spherical NCs undergo a core-shell reconfiguration at a temperature of approximately 300 ° C, whereby the FexO core material segregates at the exterior of the CoFe2O4 shell, forming asymmetric dumbbells ('snowman-type' particles) with a small FexO domain attached to a larger CoFe2O4 domain. Upon continued annealing, the segregated FexO domains form bridges between the CoFe2O4 domains, followed by coalescence of all domains, resulting in loss of ordering in the 2D arrays.
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Affiliation(s)
- Anil O Yalcin
- Kavli Institute of Nanoscience, Delft University of Technology, Lorentzweg 1, 2628 CJ Delft, The Netherlands
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28
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Kim Y, Smith OL, Kathaperumal M, Johnstone LR, Pan MJ, Perry JW. Enhancement of breakdown strength and energy density in BaTiO3/ferroelectric polymer nanocomposites via processing-induced matrix crystallinity and uniformity. RSC Adv 2014. [DOI: 10.1039/c4ra00987h] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Blade casting of BaTiO3/P(VDF-co-HFP) nanocomposites has improved morphology resulting in enhanced breakdown strength and energy density (7 J cm−3).
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Affiliation(s)
- Yunsang Kim
- School of Chemistry and Biochemistry, and Center for Organic Photonics and Electronics Georgia Institute of Technology
- Atlanta, USA
- School of Materials Science and Engineering
- Georgia Institute of Technology
- Atlanta, USA
| | - O'Neil L. Smith
- School of Chemistry and Biochemistry, and Center for Organic Photonics and Electronics Georgia Institute of Technology
- Atlanta, USA
| | - Mohanalingam Kathaperumal
- School of Chemistry and Biochemistry, and Center for Organic Photonics and Electronics Georgia Institute of Technology
- Atlanta, USA
| | - Lucas R. Johnstone
- School of Chemistry and Biochemistry, and Center for Organic Photonics and Electronics Georgia Institute of Technology
- Atlanta, USA
| | | | - Joseph W. Perry
- School of Chemistry and Biochemistry, and Center for Organic Photonics and Electronics Georgia Institute of Technology
- Atlanta, USA
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29
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Agthe M, Wetterskog E, Mouzon J, Salazar-Alvarez G, Bergström L. Dynamic growth modes of ordered arrays and mesocrystals during drop-casting of iron oxide nanocubes. CrystEngComm 2014. [DOI: 10.1039/c3ce41871e] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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30
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Dong A, Jiao Y, Milliron DJ. Electronically coupled nanocrystal superlattice films by in situ ligand exchange at the liquid-air interface. ACS NANO 2013; 7:10978-84. [PMID: 24252075 DOI: 10.1021/nn404566b] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
The ability to remove long, insulating ligands from nanocrystal (NC) surfaces without deteriorating the structural integrity of NC films is critical to realizing their electronic and optoelectronic applications. Here we report a nondestructive ligand-exchange approach based on in situ chemical treatment of NCs floating at the liquid-air interface, enabling strongly coupled NC superlattice films that can be directly transferred to arbitrary substrates for device applications. Ligand-exchange-induced structural defects such as cracks and degraded NC ordering that are commonly observed using previous methods are largely prevented by performing ligand exchange at the liquid-air interface. The significantly reduced interparticle spacing arising from ligand replacement leads to highly conductive NC superlattice films, the electrical conductivities and carrier mobilities of which are 1 order of magnitude higher than those of the same NC films subject to substrate-supported exchange using previously reported procedures. The in situ, free-floating exchange approach presented here opens the door for electronically coupled NC superlattices that hold great promise for high-performance, flexible electronic and optoelectronic devices.
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Affiliation(s)
- Angang Dong
- Department of Chemistry and ‡Department of Macromolecular Science, Fudan University , Shanghai 200433, P. R. China
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31
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Polsen ES, Bedewy M, Hart AJ. Decoupled control of carbon nanotube forest density and diameter by continuous-feed convective assembly of catalyst particles. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2013; 9:2564-2575. [PMID: 23418098 DOI: 10.1002/smll.201202878] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/19/2012] [Revised: 12/20/2012] [Indexed: 06/01/2023]
Abstract
The widespread potential application of vertically aligned carbon nanotube (CNT) forests have stimulated recent work on large-area chemical vapor deposition growth methods, but improved control of the catalyst particles is needed to overcome limitations to the monodispersity and packing density of the CNTs. In particular, traditional thin-film deposition methods are not ideal due to their vacuum requirements, and due to limitations in particle uniformity and density imposed by the thin-film dewetting process. Here, a continuous-feed convective self-assembly process for manufacturing uniform mono- and multi-layers of catalyst particles for CNT growth is presented. Particles are deposited from a solution of commercially available iron oxide nanoparticles, by pinning the meniscus between a blade edge and the substrate. The substrate is translated at constant velocity under the blade so the meniscus and contact angle remain fixed as the particles are deposited on the substrate. Based on design of the particle solution and tuning of the assembly parameters, a priori control of CNT diameter and packing density is demonstrated. Quantitative relationships are established between the catalyst size and density, and the CNT morphology and density. The roll-to-roll compatibility of this method, along with initial results achieved on copper foils, suggest promise for scale-up of CNT forest manufacturing at commercially relevant throughput.
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Affiliation(s)
- Erik S Polsen
- Mechanosynthesis Group, Department of Mechanical Engineering, University of Michigan, 2350 Hayward St., Ann Arbor, MI 48109, USA
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32
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Calzolari DCE, Pontoni D, Daillant J, Reichert H. An X-ray chamber for in situ structural studies of solvent-mediated nanoparticle self-assembly. JOURNAL OF SYNCHROTRON RADIATION 2013; 20:306-15. [PMID: 23412488 PMCID: PMC3943544 DOI: 10.1107/s0909049513001143] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/06/2012] [Accepted: 01/11/2013] [Indexed: 05/30/2023]
Abstract
Spontaneous ordering of nanoparticles (NPs) occurring as a consequence of solvent evaporation can yield highly ordered and extended NP superlattices bearing both fundamental scientific interest and potential for technological application. A versatile experimental chamber has been developed allowing (i) controlled in situ deposition of NP solutions on solid substrates, (ii) rate-controlled evaporation of the bulk solvent, and (iii) adsorption/desorption of nano-thick solvent films onto preformed NP assemblies. Within this hermetically sealed chamber all the stages of self-assembly, including macroscopic solution evaporation, NP thin-film formation and its subsequent structural transformation induced by nano-thick solvent films, can be characterized in situ by X-ray scattering techniques. Here, technical design and calibration details are provided, as well as three experimental examples highlighting the chamber's performances and potential. Examples include the controlled adsorption of thin toluene films on flat silicon wafers, the observation of transient accumulation of gold NPs near the toluene-vapour interface, and preliminary data on the structural effects of fast macroscopic solvent evaporation followed by nanoscale solvent adsorption/desorption from a vapour phase. By combining bulk evaporation rate control, fine tuning of the thickness of adsorbed solvent films and in situ X-ray characterization capabilities, this cell enables explorations of both near-to-equilibrium and far-from-equilibrium routes to NP self-assembly.
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Affiliation(s)
| | - Diego Pontoni
- European Synchrotron Radiation Facility, Beamline ID15, 38043 Grenoble, France
| | - Jean Daillant
- CEA, IRAMIS, LIONS, Batiment 125, CEA Saclay, F-91191 Gif-sur-Yvette Cedex, France
| | - Harald Reichert
- European Synchrotron Radiation Facility, Beamline ID15, 38043 Grenoble, France
- Max-Planck-Institut für Metallforschung, Heisenbergstrasse 3, D-70569 Stuttgart, Germany
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33
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Fan G, Tong J, Li F. Visible-Light-Induced Photocatalyst Based on Cobalt-Doped Zinc Ferrite Nanocrystals. Ind Eng Chem Res 2012. [DOI: 10.1021/ie201933g] [Citation(s) in RCA: 111] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Guoli Fan
- State Key Laboratory of Chemical Resource
Engineering, Beijing University of Chemical Technology, Box 98, Beijing 100029, China
| | - Ji Tong
- State Key Laboratory of Chemical Resource
Engineering, Beijing University of Chemical Technology, Box 98, Beijing 100029, China
| | - Feng Li
- State Key Laboratory of Chemical Resource
Engineering, Beijing University of Chemical Technology, Box 98, Beijing 100029, China
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34
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Zhang SY, Ye E, Liu S, Lim SH, Tee SY, Dong Z, Han MY. Temperature and chemical bonding-directed self-assembly of cobalt phosphide nanowires in reaction solutions into vertical and horizontal alignments. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2012; 24:4369-4375. [PMID: 22806698 DOI: 10.1002/adma.201201618] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/23/2012] [Indexed: 06/01/2023]
Abstract
The preparation of vertically or horizontally aligned self-assemblies of CoP nanowires is demonstrated for the first time by aging them in the reaction solution for a sufficient time at 20 or 0 °C. This strategy opens up a way for exploring the controlled self-assembly of various highly anisotropic nanostructures into long-range ordered structures with collective properties.
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Affiliation(s)
- Shuang-Yuan Zhang
- Institute of Materials Research and Engineering, Agency for Science, Technology and Research 3 Research Link, 117602, Singapore
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35
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Bellido E, Domingo N, Ojea-Jiménez I, Ruiz-Molina D. Structuration and integration of magnetic nanoparticles on surfaces and devices. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2012; 8:1465-1491. [PMID: 22467627 DOI: 10.1002/smll.201101456] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/18/2011] [Revised: 11/07/2011] [Indexed: 05/31/2023]
Abstract
Different experimental approaches used for structuration of magnetic nanoparticles on surfaces are reviewed. Nanoparticles tend to organize on surfaces through self-assembly mechanisms controlled by non-covalent interactions which are modulated by their shape, size and morphology as well as by other external parameters such as the nature of the solvent or the capping layer. Further control on the structuration can be achieved by the use of external magnetic fields or other structuring techniques, mainly lithographic or atomic force microscopy (AFM)-based techniques. Moreover, results can be improved by chemical functionalization or the use of biological templates. Chemical functionalization of the nanoparticles and/or the surface ensures a proper stability as well as control of the formation of a (sub)monolayer. On the other hand, the use of biological templates facilitates the structuration of several families of nanoparticles, which otherwise may be difficult to form, simply by establishing the experimental conditions required for the structuration of the organic capsule. All these experimental efforts are directed ultimately to the integration of magnetic nanoparticles in sensors which constitute the future generation of hybrid magnetic devices.
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Affiliation(s)
- Elena Bellido
- Centro de Investigación en Nanociencia y Nanotecnología, (Esfera UAB. Campus UAB, Cerdanyola del Vallès, Spain
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36
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Smilgies DM, Heitsch AT, Korgel BA. Stacking of Hexagonal Nanocrystal Layers during Langmuir–Blodgett Deposition. J Phys Chem B 2012; 116:6017-26. [DOI: 10.1021/jp3015436] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Detlef-M. Smilgies
- Cornell High Energy
Synchrotron
Source (CHESS), Cornell University, Ithaca
New York 14853, United States
| | - Andrew T. Heitsch
- Department of Chemical Engineering,
Texas Materials Institute, Center for Nano- and Molecular Science
and Technology, The University of Texas at Austin, Austin, Texas 78712-1062, United States
| | - Brian A. Korgel
- Department of Chemical Engineering,
Texas Materials Institute, Center for Nano- and Molecular Science
and Technology, The University of Texas at Austin, Austin, Texas 78712-1062, United States
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37
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Bodnarchuk MI, Shevchenko EV, Talapin DV. Structural Defects in Periodic and Quasicrystalline Binary Nanocrystal Superlattices. J Am Chem Soc 2011; 133:20837-49. [DOI: 10.1021/ja207154v] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Maryna I. Bodnarchuk
- Department of Chemistry and James Frank Institute, University of Chicago, Chicago, Illinois 60637, United States
| | - Elena V. Shevchenko
- Center for Nanoscale Materials, Argonne National Lab, Argonne, Illinois 60439, United States
| | - Dmitri V. Talapin
- Department of Chemistry and James Frank Institute, University of Chicago, Chicago, Illinois 60637, United States
- Center for Nanoscale Materials, Argonne National Lab, Argonne, Illinois 60439, United States
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38
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Paik T, Ko DK, Gordon TR, Doan-Nguyen V, Murray CB. Studies of liquid crystalline self-assembly of GdF₃ nanoplates by in-plane, out-of-plane SAXS. ACS NANO 2011; 5:8322-30. [PMID: 21905726 DOI: 10.1021/nn203049t] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Directed self-assembly of colloidal nanocrystals into ordered superlattices enables the preparation of novel metamaterials with diverse functionalities. Structural control and precise characterization of these superlattices allow the interactions between individual nanocrystal building blocks and the origin of their collective properties to be understood. Here, we report the directed liquid interfacial assembly of gadolinium trifluoride (GdF(3)) nanoplates into liquid crystalline assemblies displaying long-range orientational and positional order. The macroscopic orientation of superlattices is controlled by changing the subphases upon which liquid interfacial assembly occurs. The assembled structures are characterized by a combination of transmission electron microscopy (TEM) and small-angle X-ray scattering (SAXS) measurements performed on a laboratory diffractometer. By doping GdF(3) nanoplates with europium (Eu(3+)), luminescent phosphorescent superlattices with controlled structure are produced and enable detailed structural and optical characterization.
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Affiliation(s)
- Taejong Paik
- Department of Chemistry, University of Pennsylvania, 231 South 34th Street, Philadelphia, Pennsylvania 19104, United States
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39
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Yuan B, Hu SX, Lu NY, Xu F, Zhou K, Ma YQ, Li M. Electrical bistability in self-assembled hybrid multilayers of phospholipid and nanoparticles. NANOTECHNOLOGY 2011; 22:315303. [PMID: 21747161 DOI: 10.1088/0957-4484/22/31/315303] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
A novel kind of biomolecule-based electrical bistable device composed of phospholipid-CdTe nanoparticle multilayered films was demonstrated. The composite film was fabricated by a facile solution-cast method. X-ray reflectivity and transmission electron microscopy measurements showed the homogeneous distribution of nanoparticles within the lamellar lipid matrix with long-range ordering. Current-voltage scans on the Al/(lipid-nanoparticle composite film)/ITO/glass structures at room temperature exhibited an obvious current bistable phenomenon. Further investigation of such bionanoparticle composite film promises to show its importance for applications in future memory nanodevices with tailored performance.
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Affiliation(s)
- Bing Yuan
- Center for Soft Condensed Matter Physics and Interdisciplinary Research, Soochow University, Suzhou, People's Republic of China
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40
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Bodnarchuk MI, Li L, Fok A, Nachtergaele S, Ismagilov RF, Talapin DV. Three-Dimensional Nanocrystal Superlattices Grown in Nanoliter Microfluidic Plugs. J Am Chem Soc 2011; 133:8956-60. [DOI: 10.1021/ja201129n] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Maryna I. Bodnarchuk
- Department of Chemistry, University of Chicago, Chicago, Illinois 60637, United States
| | - Liang Li
- Department of Chemistry, University of Chicago, Chicago, Illinois 60637, United States
| | - Alice Fok
- Department of Chemistry, University of Chicago, Chicago, Illinois 60637, United States
| | - Sigrid Nachtergaele
- Department of Chemistry, University of Chicago, Chicago, Illinois 60637, United States
| | - Rustem F. Ismagilov
- Department of Chemistry, University of Chicago, Chicago, Illinois 60637, United States
| | - Dmitri V. Talapin
- Department of Chemistry, University of Chicago, Chicago, Illinois 60637, United States
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41
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Dong A, Ye X, Chen J, Murray CB. Two-dimensional binary and ternary nanocrystal superlattices: the case of monolayers and bilayers. NANO LETTERS 2011; 11:1804-1809. [PMID: 21413781 DOI: 10.1021/nl200468p] [Citation(s) in RCA: 65] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
The modular assembly of multicomponent nanocrystal (NC) superlattices enables new metamaterials with programmable properties. While self-assembly of three-dimensional (3D) binary NC superlattices (BNSLs) has advanced significantly in the past decade, limited progress has been made to grow 2D BNSLs such as monolayers and bilayers over extended areas. Here, we report the growth of large-area (∼ 1 cm(2)), transferable BNSL monolayers using the liquid-air interfacial assembly approach. The BNSL monolayers are formed by an entropy-driven assembly process with structures tunable by varying the NC size ratio. We further demonstrate the liquid-air interfacial assembly of BNSL bilayers which exhibit unique superlattice structures that have not been observed in the 3D BNSLs. As a further extension, bilayered ternary NC superlattices (TNSLs) are obtained by the cocrystallization of three types of NCs at the liquid-air interface.
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Affiliation(s)
- Angang Dong
- Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States.
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42
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Quan Z, Valentin‐Bromberg L, Loc WS, Fang J. Self‐Assembly of Lead Chalcogenide Nanocrystals. Chem Asian J 2011; 6:1126-36. [DOI: 10.1002/asia.201000937] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2010] [Indexed: 11/11/2022]
Affiliation(s)
- Zewei Quan
- Department of Chemistry, State University of New York at Binghamton, Binghamton, New York 13902 (USA), Fax: (+1) 607‐777‐4478
| | - Loriana Valentin‐Bromberg
- Department of Chemistry, State University of New York at Binghamton, Binghamton, New York 13902 (USA), Fax: (+1) 607‐777‐4478
| | - Welley Siu Loc
- Department of Chemistry, State University of New York at Binghamton, Binghamton, New York 13902 (USA), Fax: (+1) 607‐777‐4478
| | - Jiye Fang
- Department of Chemistry, State University of New York at Binghamton, Binghamton, New York 13902 (USA), Fax: (+1) 607‐777‐4478
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43
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Pichler S, Bodnarchuk MI, Kovalenko MV, Yarema M, Springholz G, Talapin DV, Heiss W. Evaluation of ordering in single-component and binary nanocrystal superlattices by analysis of their autocorrelation functions. ACS NANO 2011; 5:1703-12. [PMID: 21370900 DOI: 10.1021/nn200265e] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
Self-assembly of colloidal nanocrystals and other nanosized building blocks has led to numerous large-scale and well-ordered superstructures. To quantify the superlattice quality we present a simple and efficient method, based on analysis of the autocorrelation function to determine characteristic order parameters for short-range and long-range ordering. This provides a feedback for further improvements of deposition techniques and self-assembly processes. To show the power of this method, it is applied to various two-dimensional ordered single component and binary nanocrystal assemblies. A quantitative comparison of the normalized long-range order parameter for various colloidal or epitaxially grown superlattice structures evidences that the long-range ordering in monodisperse colloidal superlattices by far supersedes that obtained at best by epitaxially grown quantum dots. Astonishingly, for selected binary nanocrystal superlattices the long-range ordering parameter reaches almost the same values as for single component superlattices. Besides the high sensitivity of the introduced quantification method to lattice imperfections our analysis also reveals any anisotropy in the ordering of the superlattices, which again can be quantified, for example, to identify the areas of highest quality within one specific sample.
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Affiliation(s)
- Stefan Pichler
- Institute of Semiconductor and Solid State Physics, University Linz, Linz, Austria.
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44
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Eah SK. A very large two-dimensional superlattice domain of monodisperse gold nanoparticles by self-assembly. ACTA ACUST UNITED AC 2011. [DOI: 10.1039/c1jm11671a] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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45
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Ma H, Hao J. Ordered patterns and structures via interfacial self-assembly: superlattices, honeycomb structures and coffee rings. Chem Soc Rev 2011; 40:5457-71. [DOI: 10.1039/c1cs15059f] [Citation(s) in RCA: 151] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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46
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Corricelli M, Altamura D, De Caro L, Guagliardi A, Falqui A, Genovese A, Agostiano A, Giannini C, Striccoli M, Curri ML. Self-organization of mono- and bi-modal PbS nanocrystal populations in superlattices. CrystEngComm 2011. [DOI: 10.1039/c0ce00874e] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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47
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Chen J, Dong A, Cai J, Ye X, Kang Y, Kikkawa JM, Murray CB. Collective dipolar interactions in self-assembled magnetic binary nanocrystal superlattice membranes. NANO LETTERS 2010; 10:5103-5108. [PMID: 21070007 DOI: 10.1021/nl103568q] [Citation(s) in RCA: 61] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Co-assembly of two types of nanocrystals (NCs) into binary NC superlattices (BNSLs) provides a solution-based, inexpensive way to create novel metamaterials with rationally designed properties. The fundamental challenge is to probe and understand the nature and extent of complex interparticle interactions present in BNSLs, which can lead to collective properties that differ from their dispersed constituents or phase-separated counterparts. Here, we report the growth and magnetic characterization of large-area (∼1 cm(2)) BNSL membranes self-assembled from distinct magnetic NCs at the liquid-air interface. The resulting BNSL membranes exhibit a single-phase-like magnetization alignment process, which is not observed in the phase-separated NC mixtures having the same stoichiometry. This single-phase-like magnetic behavior is attributed to the collective interparticle dipolar interactions between two NC components in BNSLs, corroborated by calculation of the random dipolar fields as well as Monte Carlo simulation. The collective magnetic properties are demonstrated in magnetic BNSL membranes having different structures (stoichiometry) and different NC combinations.
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Affiliation(s)
- Jun Chen
- Department of Materials Science and Engineering
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48
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Ungar G, Liu F, Zeng XB, Glettner B, Prehm M, Kieffer R, Tschierske C. GISAXS in the study of supramolecular and hybrid liquid crystals. ACTA ACUST UNITED AC 2010. [DOI: 10.1088/1742-6596/247/1/012032] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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49
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Kamat PV, Tvrdy K, Baker DR, Radich EJ. Beyond Photovoltaics: Semiconductor Nanoarchitectures for Liquid-Junction Solar Cells. Chem Rev 2010; 110:6664-88. [DOI: 10.1021/cr100243p] [Citation(s) in RCA: 676] [Impact Index Per Article: 48.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Prashant V. Kamat
- Radiation Laboratory and Departments of Chemistry & Biochemistry and Chemical & Biomolecular Engineering, University of Notre Dame, Notre Dame, Indiana 46556, United States
| | - Kevin Tvrdy
- Radiation Laboratory and Departments of Chemistry & Biochemistry and Chemical & Biomolecular Engineering, University of Notre Dame, Notre Dame, Indiana 46556, United States
| | - David R. Baker
- Radiation Laboratory and Departments of Chemistry & Biochemistry and Chemical & Biomolecular Engineering, University of Notre Dame, Notre Dame, Indiana 46556, United States
| | - Emmy J. Radich
- Radiation Laboratory and Departments of Chemistry & Biochemistry and Chemical & Biomolecular Engineering, University of Notre Dame, Notre Dame, Indiana 46556, United States
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50
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Bodnarchuk MI, Kovalenko MV, Heiss W, Talapin DV. Energetic and Entropic Contributions to Self-Assembly of Binary Nanocrystal Superlattices: Temperature as the Structure-Directing Factor. J Am Chem Soc 2010; 132:11967-77. [PMID: 20701285 DOI: 10.1021/ja103083q] [Citation(s) in RCA: 188] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Maryna I. Bodnarchuk
- Department of Chemistry and James Franck Institute, University of Chicago, Chicago, Illinois 60637, and Institute of Semiconductor and Solid State Physics, Johannes Kepler University Linz, A-4040 Linz, Austria
| | - Maksym V. Kovalenko
- Department of Chemistry and James Franck Institute, University of Chicago, Chicago, Illinois 60637, and Institute of Semiconductor and Solid State Physics, Johannes Kepler University Linz, A-4040 Linz, Austria
| | - Wolfgang Heiss
- Department of Chemistry and James Franck Institute, University of Chicago, Chicago, Illinois 60637, and Institute of Semiconductor and Solid State Physics, Johannes Kepler University Linz, A-4040 Linz, Austria
| | - Dmitri V. Talapin
- Department of Chemistry and James Franck Institute, University of Chicago, Chicago, Illinois 60637, and Institute of Semiconductor and Solid State Physics, Johannes Kepler University Linz, A-4040 Linz, Austria
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